Gas pipe sizing

[doitall]

This is where the industrial and domestic are different Chris, it matters a lot.

The actual Drop at the appliances are.

C 0.65

E 1.35

F. 1.39

E or F would not be acceptable.

In a domestic installation you will know best, as to whether you could get away with it or not.

 

[chrishutt]

A-B 1MB.
B-C 0.62MB.
B-D 2MB.
D-E 1.2MB.
D-F 1MB.

According to your previous post the pressure drop from A to F was 1.0 + 2.0 + 1.0 = 4.0 mb. Now you are saying it's 1.39 mb.

Which is wrong?

 

[Moz]

just bung a few lengths of 28mm in , Yawn ..lol

 

[Biggles..]

Start with a few lengths of 35mm, been allowed for domestic since 2005. Only thing you'll find is you probably wont get a 35mm meter union so go with a 28mm and step up to 35mm straight off the union.